+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   447750 (2007 HS47) Classification: Main-belt Asteroid          SPK-ID: 2447750 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1904182858244803 4.1975e-08   a 2.362881451970092 2.0628e-08 au q 1.912945616279488 1.0447e-07 au i 2.703166172872793 6.7218e-06 deg node 157.3528437648328 0.00019483 deg peri 150.166543262367 0.00019769 deg M 151.517427629262 3.6761e-05 deg tp 2458442.130851257045 (2018-Nov-19.63085126) 0.00013353 TDB period 1326.665167780627 3.63 1.7373e-05 4.756e-08 d yr n .2713570905025287 3.5535e-09 deg/d Q 2.812817287660696 2.4556e-08 au   Orbit Determination Parameters    # obs. used (total)      83      data-arc span      5548 days (15.19 yr)      first obs. used      2004-09-17      last obs. used      2019-11-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59311      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 07:47:43   Additional Information  Earth MOID = .898765 au   Jupiter MOID = 2.44185 au   T_jup = 3.524  [ hide covariance matrix ] Orbital Elements at Epoch 2457432.5 (2016-Feb-14.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1911865770778498 4.1834e-08   q 1.910443959959343 1.0411e-07 au tp 2457116.329815828813 (2015-Apr-03.82981583) 0.00012981 TDB node 157.3875281532448 0.00019477 deg peri 150.212720265873 0.00019761 deg i 2.703822753281673 6.7265e-06 deg   Orbit Determination Parameters    # obs. used (total)      83      data-arc span      5548 days (15.19 yr)      first obs. used      2004-09-17      last obs. used      2019-11-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59311      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 07:47:43   Additional Information  Jupiter MOID = 2.44185 au   T_jup = 3.524  Orbit Covariance (6×6)   e q tp node peri i e 1.750090560539938E-15 -4.302598476496192E-15 -3.077211256031791E-13 -1.523117132734239E-14 -1.286551386074403E-13 -1.546076924053978E-15 q -4.302598476496192E-15 1.083893835512898E-14 9.42950893334906E-13 6.277933260661328E-14 3.679659731219299E-13 5.101732643531943E-15 tp -3.077211256031791E-13 9.42950893334906E-13 1.684935211119211E-8 7.732538357444236E-10 4.522965375363614E-9 2.243995300452251E-11 node -1.523117132734239E-14 6.277933260661328E-14 7.732538357444236E-10 3.793430568245817E-8 -3.764847161641151E-8 7.606854697848387E-10 peri -1.286551386074403E-13 3.679659731219299E-13 4.522965375363614E-9 -3.764847161641151E-8 3.90504426610749E-8 -7.527765324398085E-10 i -1.546076924053978E-15 5.101732643531943E-15 2.243995300452251E-11 7.606854697848387E-10 -7.527765324398085E-10 4.524543506894731E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 18.1   n/a MPO450460   447750 (2007 HS47)          Discovered 2004-Sep-17 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-10-28 Alternate Designations  2007 HS47 = 2004 SA8  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-22 08:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin